The Luth-AR mil-spec AR-15 detachable carrying handle is a great AR-15 accessory for the AR-15 purist. In this day and age of flat top upper receivers and optics ready carbine a little but of the history of the AR-15 has been left behind. A marksman was judged by his ability to makes clean hits on target with just the use of the iron sights. This detachable carry handle will pair nicely with an AR-15 that has a fixed front sight post but a flat top rear. You can use the carrying handle with an optics ready platform just make sure you have the correct height front sight.